My 2003 grand am pontiac has idol high problem

Asked by Robert Mar 16, 2014 at 06:26 AM about the 2003 Pontiac Grand Am SE

Question type: Maintenance & Repair

Start car and idol goes up very high

3 Answers
8,610

BritishTech77 answered 10 years ago

If you have a plug that plugs into intake then its controlled by ECM which will have to be turned down by dealer. If a plug is unplugged or vacuum leak it could cause that. Otherwise from that if manual..manually turn down!

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199,815

dandyoun answered 10 years ago

Possibly dirty/faulty idle air control valve, vacuum leak or stuck open pcv valve.

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